Industrial chimney manufacturing involves the design, fabrication, and installation of chimneys used to expel exhaust gases from industrial processes. These chimneys are engineered to withstand high temperatures, corrosive gases, and environmental conditions. Here’s a quick overview:
Types of Industrial Chimneys:
1. Steel Chimneys – Made from carbon steel or stainless steel; used in power plants, boilers, etc.
2. RCC (Reinforced Cement Concrete) Chimneys – Used for high-rise exhaust requirements; common in cement, thermal, and chemical industries.
3. Brick Chimneys – Traditional type, less common today but still used in small-scale operations.
4. FRP Chimneys – Made from fiberglass-reinforced plastic for chemical resistance.
5. Lined Chimneys – Internally lined with refractory or acid-resistant bricks for handling corrosive flue gases.
Key Manufacturing Steps:
1. Design & Engineering – Based on draft requirement, temperature, gas composition, and height regulations.
2. Material Selection – Depending on operational environment (e.g., steel grades, concrete type).
3. Fabrication – Rolling, welding, and assembling of shell sections in steel chimneys; shuttering and reinforcement for RCC.
4. Lining (if needed) – Installation of thermal insulation or acid-resistant lining.
5. Testing & QA – Includes non-destructive testing (NDT), stress analysis, etc.
6. Erection/Installation – Using cranes, derricks, or slip-forming (for RCC chimneys).
Applications:
• Cement plants
• AAC block plants
• Thermal power stations
• Petrochemical plants
• Boilers and incinerators
